Ukraine says its future may depend on the brutal battles raging around Bakhmut, but there are growing splits between officials in Kyiv and some Western military analysts over the best approach to what could be a decisive period in the conflict. For months, Ukraine’s defense of the eastern city has held up and worn down Russian forces while serving as a potent symbol of the country’s defiance. Now, as Moscow’s assault intensifies, a number of observers have questioned whether Kyiv's decision to reinforce the area rather than retreat is being driven more by the political desire to avoid a high-profile...